Question

it is easier to stop a tennis ball rather than a cricket ball moving with a same speed

Answer 1

it is easier to stop a tennis ball rather than a cricket ball moving with a same speed because tennis ball is lighter in weight than cricket ball and it has lower momentum than cricket ball.
formula of momentum is :-
momentum (P) = mass* velocity

Answer 2

In the world of physics, yes, it would take less resistance to stop a tennis ball. Because of the greater mass of the cricket ball, it would produce more kinetic energy and therefore it would be more difficult to stop.